Home / 2,189.53-3,280.64-1,539.10

Finding the Fourth Proportional to 2,189.53, 3,280.64 and 1,539.10

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Solution

The fourth proportional to 2,189.53, 3,280.64 and 1,539.10 is: 2,306.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.53 : 3,280.64 = 1,539.10 : x
  2. Step 2: Convert to fraction form
    2,189.53/3,280.64 = 1,539.10/x
  3. Step 3: Cross multiply
    2,189.53x = 3,280.64 × 1,539.10
  4. Step 4: Simplify right side
    2,189.53x = 5,049,233.02
  5. Step 5: Solve for x
    x = 5,049,233.02/2,189.53
  6. Step 6: Final answer
    x = 2,306.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.